/ Dictionary / Index A acoustic coupler: Meaning and Definition of Find definitions for: acous'tic cou'pler Pronunciation: [key] — Computers. Computers. a modem designed to connect a telephone handset to a computer terminal or processor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acoustical tile acoustic feature Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language